University of Minnesota
MICaB Graduate Program
MICaB Home | U of M Medical School | Graduate School

Unit's home page.

MICaB Faculty

Trinity Hamilton, Ph.D.

Assistant Professor

Plant and Microbial Biology

Montana State University, 2012, Ph.D.

612-625-6372 Office

612-625-6372 Lab

Research Interests:

Environmental microbiology, microbial physiology

Our lab studies the functions and interactions of microorganisms in natural and engineered systems and how microbial communities respond and adapt to environmental change. We are particularly interested in life at the fringe of redox gradients and temperature extremes.  We use traditional microbiology and molecular techniques as well as next generation -omics approaches in combination with high resolution geochemical and geological data. The integration of these data results in a multidisciplinary approach to examine the in situ dynamics of interacting microbial populations and the effect of these interactions on local and global biogeochemical cycles. Ongoing projects in the lab include: 1) Cyanobacterial photosynthesis under sulfidic and anoxic conditions; 2) the limits of chlorophototrophy (from glaciers to hot springs); 3) competitive interactions and microbial community assembly; 4) the ecology and physiology of toxin-producing Cyanobacteria.

Selected Recent Publications:

Hamilton, T.L., Havig, J.R. Inorganic carbon stimulates snow algae primary productivity. The ISME Journal. In press. (doi:10.1038/s41396-018-0048-6)

Hamilton, T.L., Klatt, J., de Beer, D., Macalady J.L. Cyanobacterial photosynthesis under sulfidic conditions - Insights from the isolate Leptolyngbya sp. strain hensonii. Accepted. The ISME Journal. 12, 568–584 (doi:10.1038/ismej.2017.193)

Schuler C., Havig, J.R., Hamilton, T.L. (2017) Carbon fixation across geochemical gradients in the Greater Obsidian Pool Area. Frontiers in Earth Science. 5: 97. (doi: 10.3389/feart.2017.00097)

Coleman, D.R., Poudel, S., Hamilton T.L., Havig, J.R., Selensky, M., Shock, E.L., Boyd, E.S. Geobiological feedbacks and the evolution of thermoacidophiles. The ISME Journal. 12: 225-236. (doi: 10.1038/ismej.2017.162)

Hamilton, T.L., Welander, P., Albrecht, H.L., Fulton, J.M., Schaperdoth, I., Bird, L., Summons, R., Freeman, K.H., Macalady, J.L. Microbial communities and organic biomarkers in a Proterozoic-analog sinkhole environment. Geobiology. 15: 784-797. (doi: 10.1111/gbi.12252)

Hamilton, T.L., Havig, J.R. (2017) Supraglacial primary productivity in glaciers on stratovolcanoes of the Pacific Northwest. Geobiology. 15: 280-295. (doi:10.1111/gbi.12219)

Hotaling, S., Hood, E., Hamilton, T.L. (2017) Microbial ecology of the alpine cryosphere: glaciers, subglacial environments, and meltwater streams. Environmental Microbiology. 19: 2935-2948. (doi: 10.1111/1462-2920.13766)

de Beer, D., Weber, M., Chennu, A., Hamilton, T.L., Lott, C., Macalady, J.L., Klatt, J. (2017) Oxygenic and anoxygenic photosynthesis in a microbial mat from an anoxic spring, Little Salt Spring. Environmental Microbiology. 19: 1251–1265. (doi: 10.1111/1462-2920.13654)